Triple layer elastic masks, latex free, fiberglass. Complies with EN 14683: 2014 type IIR. Features: - Bacteria filtration efficiency (BFE): > 99%. - Differential pressure: < 49 Pa / cm². - Splash resistance pressure: ≥ 16 kPa. - Microbial cleanliness (cfu / g): < 30. - An inner layer made of soft and comfortable materials, to reduce the risk of contact reaction and skin irrigation. - An integrated nose bar for a better seal. Dimensions: 8.9 cm x 17.3 cm. Class: I. Manufacturer: CFPM.